Comparison

Wikipedia vs ERG for iOS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Wikipedia

Access the world's largest free knowledge base with over 60 million articles in nearly 300 languages. Explore trending topics, save articles for offline reading, and customize your reading experience with various themes and text sizes. Contribute to the community by editing articles and participating in discussions.

Highlights
  • Ad-free and free knowledge access
  • 60+ million articles in 300+ languages
  • Personalized trending news feed
  • Offline article saving
  • Customizable reading themes and text size
  • Map-based location discovery
  • Article discussion and contribution tools
Features
Currently charting
Read full description

The official Wikipedia app for iOS helps you explore the world’s largest free knowledge project — ad-free and free of charge, forever. With 60+ million articles in nearly 300 languages, your favorite encyclopedia is always at your fingertips. Why you’ll love this app Free, open, and ad-free Wikipedia is written and verified by volunteers worldwide, supported by the nonprofit Wikimedia Foundation. No ads, no tracking — just knowledge you can trust. Search smarter, discover more Find the information you need without distraction. Search across 300 languages, explore trending and breaking news through a personalized feed. Add knowledge to your Home Screen Use widgets for quick access to trending articles, featured content, or the “Picture of the Day,” right from your Home Screen. Read your way Choose from light, sepia, dark, or pure black themes. Adjust text size and image dimming for comfortable reading anytime, anywhere. Explore nearby places Learn about landmarks and locations near you — or places you dream of visiting — through map-based article discovery. Stay connected offline Save articles to custom reading lists and access them offline — perfect for travel or learning without internet access. Share and continue seamlessly Share articles and images with friends, or use Handoff to keep reading across your Apple devices. Get insights into your activity See your own reading and contribution activity on Wikipedia with personalized insights that help you understand and celebrate how you use engage with Wikipedia. Stay organized with tabs Open multiple articles in tabs and switch between them with ease, just like in a browser. Compare topics, keep your place, and dive deeper without losing track. Join the conversation Read and reply to article discussion pages, and get notifications when discussions you follow are updated. Contribute on the go Manage your Watchlist to help keep Wikipedia accurate and up to date. Additional Information Feedback: In the app, go to Settings → Send app feedback. Contribute to translations: https://translatewiki.net/wiki/Translating:WikimediaMobile Source code: https://github.com/wikimedia/apps-ios-wikipedia Privacy Policy: https://m.wikimediafoundation.org/wiki/Privacy_policy Terms of Use: https://m.wikimediafoundation.org/wiki/Terms_of_Use About the Wikimedia Foundation: https://wikimediafoundation.org/

About

ERG for iOS

This app provides first responders with quick access to critical information for hazardous materials transportation incidents. It features an indexed list of dangerous goods, including ID numbers, hazards, and safety precautions, aiding in effective response.

Highlights
  • Indexed list of dangerous goods
  • ID number lookup
  • General hazard information
  • Recommended safety precautions
  • Multi-language support (English, French, Spanish)
Features
Currently charting
Read full description

PHMSA’s Emergency Response Guidebook (ERG) is the go-to resource for first responders during the initial phase of a dangerous goods or hazardous materials transportation incident. The ERG app is a valuable companion, based on the latest edition of the ERG, to help responders quickly access critical information at their fingertips. The app features an indexed list of dangerous goods, including their associated ID number, general hazards, and recommended safety precautions. In practical scenarios, such as responding to an overturned tractor trailer displaying a DOT hazmat placard, emergency responders can use the app to quickly identify the material associated with the placard and get guidance on how to respond effectively. Full versions available in English, French, and Spanish.

Screenshots

Wikipedia4 screens
ERG for iOS4 screens

Verdict

The call

The clearest difference is review sentiment: ERG for iOS at 100% against Wikipedia's 55%. ERG for iOS also leads on rating (4.8 vs 4.3) and iOS requirement (12.0 vs 17.6). Wikipedia's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (6.4K vs 65). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ERG for iOS holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Wikipedia has 6.4K ratings behind it against 65, so its average is the more settled of the two. Written reviews point the same way: 55% of Wikipedia's written reviews are positive against 100% of ERG for iOS's.

UpkeepUpdate frequency

Wikipedia ships an update fortnightly, ERG for iOS every 4 months. Both last shipped on October 24, 2026.

Scorecard6 real differences · 5 level
Wikipedia versus ERG for iOS: the parameters behind the verdict, then further details
ParameterWikipediaERG for iOS
PriceFreeFree
Rating4.3 (6.4K ratings)4.8 (65 ratings) — better
Positive reviews55.3% of reviews100.0% of reviews — better
Number of ratings6.4K — better65
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#32 — better#177
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.612.0 — better
Further details — not scored
Size257 MB27 MB
Age rating9+12+
DeveloperWikimedia FoundationPipeline and Hazardous Materials Safety Administration

Customer experience

Wikipedia

All ratings6,358 ratings
Positive82.4%
Neutral4.6%
Negative13.0%
Written reviews922 reviews
Positive55.3%
Neutral11.4%
Negative33.3%

ERG for iOS

All ratings64 ratings
Positive95.3%
Neutral3.1%
Negative1.6%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Wikipedia

Reported bugs

5 issues
  • Unresponsive save button
  • Duplicate saved articles issue
  • Broken search functionality
  • Landscape mode rendering problems
  • Syncing issues with offline content

Requested features

5 requests
  • Add tabs for multi-article browsing
  • Implement a forward navigation button
  • Improve saved articles management
  • Integrate text-to-speech functionality
  • Provide more granular content filtering options

ERG for iOS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Wikipedia

No in-app purchases

None

ERG for iOS

No in-app purchases

Questions

Is Wikipedia free?
Wikipedia is free to download, with no in-app purchases.
Is ERG for iOS free?
ERG for iOS is free to download, with no in-app purchases.
Which has better reviews, Wikipedia or ERG for iOS?
ERG for iOS is rated higher. Wikipedia averages 4.3 out of 5 from 6.4K ratings, while ERG for iOS averages 4.8 from 65 ratings.
Do Wikipedia or ERG for iOS have ads?
Neither Wikipedia nor ERG for iOS shows ads.
Which is updated more often, Wikipedia or ERG for iOS?
Wikipedia ships an update fortnightly, and ERG for iOS every 4 months. Most recently, Wikipedia was updated on October 24, 2026 and ERG for iOS on October 24, 2026.
Which is more popular, Wikipedia or ERG for iOS?
Wikipedia currently peaks at #32 in the App Store charts, and ERG for iOS at #177. Chart position reflects recent download velocity rather than total install base.

Other comparisons